US20070062747A1 - Hood hinge assembly for vehicle - Google Patents

Hood hinge assembly for vehicle Download PDF

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Publication number
US20070062747A1
US20070062747A1 US11/230,378 US23037805A US2007062747A1 US 20070062747 A1 US20070062747 A1 US 20070062747A1 US 23037805 A US23037805 A US 23037805A US 2007062747 A1 US2007062747 A1 US 2007062747A1
Authority
US
United States
Prior art keywords
bar
pivot point
hinge assembly
lever
mount
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US11/230,378
Other languages
English (en)
Inventor
Gregory Erwin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GM Global Technology Operations LLC
Original Assignee
GM Global Technology Operations LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GM Global Technology Operations LLC filed Critical GM Global Technology Operations LLC
Priority to US11/230,378 priority Critical patent/US20070062747A1/en
Assigned to GM GLOBAL TECHNOLOGY OPERATIONS, INC. reassignment GM GLOBAL TECHNOLOGY OPERATIONS, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ERWIN, GREGORY S.
Priority to US11/470,265 priority patent/US7596833B2/en
Priority to DE102006043978A priority patent/DE102006043978A1/de
Priority to DE200610043979 priority patent/DE102006043979B4/de
Priority to CN2006101388170A priority patent/CN1936249B/zh
Publication of US20070062747A1 publication Critical patent/US20070062747A1/en
Abandoned legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D11/00—Additional features or accessories of hinges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/34—Protecting non-occupants of a vehicle, e.g. pedestrians
    • B60R21/38—Protecting non-occupants of a vehicle, e.g. pedestrians using means for lifting bonnets
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D3/00—Hinges with pins
    • E05D3/06—Hinges with pins with two or more pins
    • E05D3/14—Hinges with pins with two or more pins with four parallel pins and two arms
    • E05D3/145—Hinges with pins with two or more pins with four parallel pins and two arms specially adapted for vehicles
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/53—Type of wing
    • E05Y2900/536—Hoods

Definitions

  • the present invention relates generally to hinges and, more particularly, to a hood hinge assembly for a vehicle.
  • hood hinge allows the hood to be selectively opened for access to an engine and other components in an engine compartment of the vehicle.
  • a hood that is attached with a conventional hinge has several disadvantages. For instance, if an object impacts the vehicle, that object may ultimately impact the hood. Kinetic energy of the object is likely to dissipate by indirect impact with the vehicle engine block, which is typically directly underneath the hood. Indirect impact with the engine in this manner is likely to harm the object. Therefore, a need developed for a hood that could move the hood away from the engine block during a collision such that an impacted object is more likely to deform the hood to dissipate kinetic energy.
  • hood hinge assemblies have been developed that pivotally attach the hood to the vehicle and that may be deployed to move the hood away from the engine block.
  • these hinges can move the hood substantially in the fore and aft direction instead of moving the hood more directly vertical away from the vehicle body.
  • these hood hinge assemblies can be relatively unstable when deployed such that the hood moves in an undesired manner.
  • these movable hinges can be bulky and therefore difficult to incorporate into a vehicle because they can interfere with other components.
  • the present invention is a hood hinge assembly for operatively attaching a hood to a vehicle body of a vehicle including a base adapted to be operatively fixed to the vehicle body.
  • the hood hinge assembly also includes a mount bar adapted for pivotal attachment to the hood at a first pivot point.
  • the hood hinge assembly includes a lever bar pivotally attached to the mount bar at a second pivot point and pivotally attached to the base at a third pivot point.
  • the hood hinge assembly further includes an actuator operable to pivot the lever bar about the third pivot point to thereby move the first pivot point away from the vehicle.
  • the hood hinge assembly includes a support bar pivotally attached to the mount bar at a fourth pivot point. The support bar is operable to support the mount bar at the fourth pivot point as the mount bar pivots about the second pivot point.
  • a new hood hinge assembly is provided for a vehicle for moving a hood of the vehicle away from a body of the vehicle.
  • the hood hinge assembly moves the hood in a substantially vertical direction away from the body of the vehicle.
  • the hood hinge assembly is substantially robust and maintains substantially stable movement when deploying.
  • the hood hinge assembly is substantially compact such that the hood hinge assembly can be incorporated into the vehicle and is less likely to interfere with other components.
  • FIG. 1 is an elevational view of a hood hinge assembly, according to the present invention, illustrated in operational relationship with a vehicle in an extended and a retracted position.
  • FIG. 2 is a perspective view of the hood hinge assembly of FIG. 1 illustrated in a retracted position.
  • FIG. 3 is an elevational view of the hood hinge assembly of FIG. 1 illustrated in the retracted position and illustrated with a hood of the vehicle in an opened and closed position.
  • FIG. 4 is an elevational view of the hood hinge assembly of FIG. 1 illustrated in an extended position.
  • a hood hinge assembly 10 for a vehicle such as a motor vehicle, generally indicated at 12 .
  • vehicles 12 typically include a body 14 (partially shown) forming an engine compartment 16 .
  • the engine compartment 16 has a recess 18 in which an engine, schematically shown at 19 , can be disposed.
  • the vehicle 12 also includes a hood 20 that closes and opens the recess 18 .
  • the hood 20 is operatively attached to the vehicle 12 by at least one, and preferably a plurality of laterally spaced hood hinge assemblies 10 . It should be appreciated that only one hood hinge assembly 10 is illustrated in FIG. 1 and will be subsequently described. It should also be appreciated that, except for the hood hinge assembly 10 , the vehicle 12 is conventional and known in the art.
  • the hood hinge assembly 10 is adapted for pivotal attachment to the hood 20 at a first pivot point 22 .
  • the first pivot point 22 is located on a rear corner 24 of the hood 20 .
  • the hood 20 also includes a striker 26 illustrated in FIG. 1 .
  • the striker 26 is longitudinally spaced from the first pivot point 22 and is located on a front end 28 of the hood 20 .
  • the hood 20 When the hood 20 is in a closed position (shown in phantom lines in FIG. 1 ), the hood 20 generally covers the recess 18 . In this position, the striker 26 is secured to the body 14 by a latch assembly 30 attached to the body 14 .
  • the hood 20 is opened by releasing the striker 26 from the latch assembly 30 and pivotally moving the hood 20 about the first pivot point 22 .
  • the hood hinge assembly 10 can be positioned in a retracted position (shown in phantom lines in FIG. 1 ), and an extended position (shown in solid lines in FIG. 1 ). In the retracted position, the hood hinge assembly 10 retains the first pivot point 22 generally adjacent the body 14 for normal opening and closing of the hood 20 as previously described. In the extended position, the hood hinge assembly 10 generally moves the first pivot point 22 away from the body 14 such that the hood 20 pivots about the striker 26 , which remains secured to the latch assembly 30 .
  • the vehicle 12 also includes at least one sensor 32 , shown schematically in FIG. 1 .
  • the sensor 32 is operable to detect when the vehicle 12 impacts an object.
  • the sensor 32 is in communication with a controller 34 , also shown schematically in FIG. 1 .
  • the controller 34 is in electrical communication with the sensor 32 .
  • the controller 34 is operable to receive a signal from the sensor 32 , indicating that an object (not shown) has impacted the vehicle 12 .
  • the controller 34 transmits a signal to an actuator which fires, causing the hood hinge assembly 10 to move from the retracted position to the extended position in a manner to be described.
  • the hood hinge assembly 10 creates space between the hood 20 and the engine 19 such that if an object impacts the vehicle 12 , the object can more readily deform the hood 20 to dissipate kinetic energy.
  • the hood hinge assembly 10 includes a base 36 .
  • the base 36 is a plate that is bent so as to define a first portion 38 and second portion 40 .
  • the second portion 40 is substantially perpendicular to the first portion 38 .
  • the first portion 38 includes a plurality of apertures 42 ( FIG. 2 ) used to operatively fix the base 36 to the body 14 by a suitable mechanism such as fasteners (not shown). It should be appreciated that the base 36 could be integral to the body 14 .
  • the hood hinge assembly 10 also includes a mount bar 44 .
  • the mount bar 44 is generally elongate and is adapted for pivotal attachment to the hood 20 .
  • the mount bar 44 defines a first end 46 and the rear corner 24 of the hood 20 is pivotally attached to the first end 46 to define the first pivot point 22 of the hood 20 .
  • the mount bar 44 can include any suitable component for pivotally attaching to the hood 20 at the first pivot point 22 , such as a hinge pivot weld nut (not shown).
  • the hood hinge assembly 10 includes a lever bar 48 .
  • the lever bar 48 is generally flat and elongate so as to define a first end 50 , a second end 52 , a first side 54 ( FIG. 2 ), and a second side 56 .
  • the first end 50 of the lever bar 48 is pivotally attached to the mount bar 44 so as to define a second pivot point 58 .
  • the axis of the second pivot point 58 extends through a middle portion 60 ( FIGS. 3 and 4 ) of the mount bar 44 , and the mount bar 44 is adjacent the first side 54 of the lever bar 48 .
  • the second end 52 of the lever bar 48 is pivotally attached to the second portion 40 of the base 36 so as to define a third pivot 62 .
  • the second portion 40 of the base 36 is substantially coplanar and adjacent to the first side 54 of the lever bar 48 .
  • the lever bar 48 may include any suitable component for pivotally attaching to the mount bar 44 and the base 36 .
  • the mount bar 44 is restricted against substantially all linear movement relative to the lever bar 48 at the second pivot point 58 .
  • the lever bar 48 is restricted against substantially all linear movement relative to the base 36 at the third pivot point 62 . It should be appreciated that the hood hinge assembly 10 is more stable when moving from the retracted position toward the extended position.
  • the hood hinge assembly 10 also includes a retainer bar 64 .
  • the retainer bar 64 is generally planar and is fixed to the base 36 .
  • the retainer bar 64 is integrally attached to the base 36 and extends perpendicularly from the first portion 38 of the base 36 .
  • the retainer bar 64 is operable to be secured to the lever bar 48 to thereby retain the lever bar 48 against pivoting about the third pivot point 62 .
  • the retainer bar 64 includes an aperture 66 ( FIG. 4 ) extending through the retainer bar 64 .
  • the lever bar 48 also includes an aperture 70 that is aligned with the aperture 66 when the hood hinge assembly 10 is in the retracted position.
  • the hood hinge assembly 10 further includes a pin 72 ( FIG. 3 ).
  • the pin 72 extends through both the aperture 66 ( FIG. 4 ) of the retainer bar 64 and the aperture 70 of the lever bar 48 to thereby secure the lever bar 48 to the retainer bar 64 .
  • the pin 72 is also operable to release the lever bar 48 so that the lever bar 48 is free to pivot about the third pivot point 62 and move the hood hinge assembly 10 toward the extended position.
  • the hood hinge assembly 10 also includes an actuator 74 ( FIG. 2 ).
  • the actuator 74 is operable to pivot the lever bar 48 about the third pivot point 62 to move the hood hinge assembly 10 from the retracted position toward the extended position.
  • the lever bar 48 includes an attachment flange 76 disposed at the first end 50 of the lever bar 48 and extending perpendicularly away from the: second side 56 of the lever bar 48 .
  • the actuator 74 is operatively attached to the attachment flange 76 , such as by a pivotal attachment.
  • the actuator 74 is operable to supply an actuation force to the lever bar 48 to thereby pivot the lever bar 48 about the third pivot point 62 .
  • the actuator 74 may be of any suitable type, such as a piston slidably attached to a cylinder or a bellows chamber, which expands due to air introduced into the actuator 74 .
  • the actuation force provided by the actuator 74 is sufficient to destruct the pin 72 .
  • the actuator 74 applies a biasing force to the lever bar 48 away from the base 36 even when the hood hinge assembly 10 is in the retracted position, and hood hinge assembly 10 moves to the extended position only when the pin 72 destructs by some independent mechanism.
  • the actuator 74 continues to apply force to the lever bar 48 when the hood hinge assembly 10 is in the extended position to hold the hood 20 away from the body 14 during a vehicular collision.
  • At least one of the base 36 and lever bar 48 defines a curved slot 78
  • the other of the base 36 and lever bar 48 includes a pin 80 that is disposed within the curved slot 78 as the lever bar 48 pivots about the third pivot point 62
  • the lever bar 48 includes a curved leg 82 extending from the second end 52 of the lever bar 48 and downward toward the base 36 .
  • the curved slot 78 is formed in the leg 82 .
  • the pin 80 is fixed to the second portion 40 of the base 36 .
  • the pin 80 is disposed within the curved slot 78 when the hood hinge assembly 10 is in the retracted position, and as the lever bar 48 pivots about the third pivot point 62 , the pin 80 remains inside the curved slot 78 . It should be appreciated that abutment between the pin 80 and the curved slot 78 guides and supports the movement of the lever bar 48 .
  • the hood hinge assembly 10 also includes a support bar 86 .
  • the support bar 86 is generally planar and elongate.
  • the support bar 86 includes a first portion 88 and a second portion 90 .
  • the second portion 90 is disposed at a positive angle relative to the first portion 88 .
  • the first portion 88 of the support bar 86 is pivotally attached to the mount bar 44 at a fourth pivot point 92 .
  • the second portion 90 is pivotally attached to the second portion 40 of the base 36 at a fifth pivot point 94 .
  • the support bar 86 is generally disposed between the lever bar 48 and the first portion 38 of the base 36 .
  • the support bar 86 is restricted against substantially all linear movement relative to the mount bar 44 at the fourth pivot point 92 .
  • the support bar 86 is restricted against substantially all liner movement relative to the base 36 at the fifth pivot point 94 . It should be appreciated that the hood hinge assembly 10 is more stable when moving from the retracted position toward the extended position.
  • the support bar 86 When the hood hinge assembly 10 is in the retracted position, the support bar 86 substantially restricts the mount bar 44 from pivoting about the second pivot point 58 . Also, as the hood hinge assembly 10 moves toward the extended position, the support bar 86 supports the mount bar 44 by pushing and/or pulling the mount bar 44 at the fourth pivot point 92 as the mount bar 44 pivots about the second pivot point 58 . By supporting the mount bar 44 in this manner, the support bar 86 maintains the mount bar 44 in a position substantially perpendicular to the first portion 38 of the base 36 as the hood hinge assembly 10 moves toward the extended position such that the first pivot point 22 moves in a substantially arcuate path in a vertical direction to pivot about the striker 26 . It should be appreciated that the rear corner 24 of the hood 20 lifts higher away from the body 14 due to the support bar 86 .
  • the hood hinge assembly 10 also includes at least one stop member operable to limit pivotal movement of the mount bar 44 about the second pivot point 58 .
  • at least one stop member operable to limit pivotal movement of the mount bar 44 about the second pivot point 58 .
  • each of the stop members cause the first pivot point 22 to move in a predetermined direction as the hood hinge assembly 10 moves from the retracted position toward the extended position, thereby moving the hood 20 of the vehicle 12 in a predetermined manner.
  • one stop member is an abutment member 84 operable to abut against the mount bar 44 to thereby limit pivotal movement of the mount bar 44 above the second pivot point 58 .
  • the lever bar 48 supports the abutment member 84 .
  • the abutment member 84 is a portion of the lever bar 48 at the first end 50 that is integrally attached to the lever bar 48 at both ends and with a middle portion that bends outward from the first side 54 of the lever bar 48 ( FIG. 2 ).
  • the abutment member 84 is oriented relative to the mount bar 44 such that the mount bar 44 eventually abuts against the abutment member 84 as the mount bar 44 pivots about the second pivot point 58 as illustrated in FIG. 4 .
  • another stop member is an abutment surface 96 included on the lever bar 48 .
  • the abutment surface 96 is generally curved and projects from the lever bar 48 toward the support bar 86 .
  • the support bar 86 will eventually abut against the abutment surface 96 of the lever bar 48 .
  • the abutment surface 96 and the abutment member 84 cooperate to limit the pivotal movement of the mount bar 44 about the second pivot point 58 .
  • the abutment surface 96 abuts against the support bar 86
  • the abutment member 84 abuts against the mount bar 44 , to hold the hood hinge assembly 10 against the force applied by the actuator 74 .
  • the abutment surface 96 and the abutment member 84 limit the mount bar 44 in a substantially perpendicular position in relation to the base 36 such that the first pivot point 22 increases the distance between the rear corner 24 of the hood 20 and the body 14 .
  • the relationship between the mount bar 44 and the base 36 may be adjusted such that the mount bar 44 is at an angle relative to the base 36 .
  • the hood hinge assembly 10 In operation of the hood hinge assembly 10 , when the sensor 32 of the vehicle 12 detects a vehicular impact, the sensor 32 sends a signal to the controller 34 .
  • the controller 34 sends a signal to the actuator 74 , and the actuator 74 supplies a force to the lever bar 48 of the hood hinge assembly 10 .
  • Force from the actuator 74 causes destruction of the pin 72 , thereby freeing the lever bar 48 for pivotal movement about the third pivot point 62 such that the hood hinge assembly 10 can move from the retracted position towards the extended position.
  • the lever bar 48 moves away from the body 14 of the vehicle 12 , the lever bar 48 moves the mount bar 44 , and thus the rear corner 24 of the hood 20 , away from the body 14 .
  • the support bar 86 maintains the mount bar 44 in a substantially perpendicular position relative to the base 36 such that the first pivot point 22 moves in a substantially vertical direction away from the body 14 .
  • the abutment member 84 and the abutment surface 96 cooperate to limit the rotation of the mount bar 44 about the second pivot point 58 and maintain the mount bar 44 substantially perpendicular to the base 36 .
  • the first pivot point 22 travels in a substantially vertical direction away from the body 14 of the vehicle 12 for increased space between the rear corner 24 of the hood 20 and the engine 19 . It should also be appreciated that an object that impacts the vehicle 12 is more likely to deform the hood 20 and dissipate kinetic energy due to the hood hinge assembly 10 of the present invention.
  • the hood hinge assembly 10 of the present invention is substantially robust and maintains substantially stable movement. This is because the first, second, third, fourth, and fifth pivot points 22 , 58 , 62 , 92 , 94 each allow for pivotal movement, but are each restricted from linear movement. Also, the pin 80 and curved slot 78 add further support to the hood hinge assembly 10 .
  • the hood hinge assembly 10 is also substantially compact. Thus, the hood hinge assembly 10 can be more easily incorporated into a vehicle 12 without interfering with other components.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Superstructure Of Vehicle (AREA)
US11/230,378 2005-09-20 2005-09-20 Hood hinge assembly for vehicle Abandoned US20070062747A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US11/230,378 US20070062747A1 (en) 2005-09-20 2005-09-20 Hood hinge assembly for vehicle
US11/470,265 US7596833B2 (en) 2005-09-20 2006-09-06 Hood hinge assembly for vehicle
DE102006043978A DE102006043978A1 (de) 2005-09-20 2006-09-19 Motorhaubenscharnier-Baueinheit für ein Fahrzeug
DE200610043979 DE102006043979B4 (de) 2005-09-20 2006-09-19 Motorhaubenscharnier-Baueinheit für ein Fahrzeug
CN2006101388170A CN1936249B (zh) 2005-09-20 2006-09-19 车辆的发动机罩铰链组件

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/230,378 US20070062747A1 (en) 2005-09-20 2005-09-20 Hood hinge assembly for vehicle

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US11/470,265 Continuation-In-Part US7596833B2 (en) 2005-09-20 2006-09-06 Hood hinge assembly for vehicle

Publications (1)

Publication Number Publication Date
US20070062747A1 true US20070062747A1 (en) 2007-03-22

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US11/230,378 Abandoned US20070062747A1 (en) 2005-09-20 2005-09-20 Hood hinge assembly for vehicle
US11/470,265 Expired - Fee Related US7596833B2 (en) 2005-09-20 2006-09-06 Hood hinge assembly for vehicle

Family Applications After (1)

Application Number Title Priority Date Filing Date
US11/470,265 Expired - Fee Related US7596833B2 (en) 2005-09-20 2006-09-06 Hood hinge assembly for vehicle

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US (2) US20070062747A1 (de)
CN (1) CN1936249B (de)
DE (1) DE102006043978A1 (de)

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US20120084942A1 (en) * 2010-10-11 2012-04-12 Gm Global Technology Operations, Inc. Hood hinge assembly for vehicle
CN102619156A (zh) * 2012-04-12 2012-08-01 常林股份有限公司 压路机玻璃钢护罩总成
WO2017003641A1 (en) * 2015-06-29 2017-01-05 Multimatic Patentco, Llc Pedestrian protection automotive hinge
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USD945349S1 (en) 2020-04-22 2022-03-08 Ringbrothers, Llc Automobile hood hinge
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USD944715S1 (en) 2020-08-26 2022-03-01 Ringbrothers, Llc Automobile hood hinge
USD1004516S1 (en) 2021-09-30 2023-11-14 Ringbrothers, Llc Automobile hood hinge
USD998531S1 (en) 2021-11-03 2023-09-12 Ringbrothers, Llc Automobile hood hinge
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US20120084942A1 (en) * 2010-10-11 2012-04-12 Gm Global Technology Operations, Inc. Hood hinge assembly for vehicle
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CN1936249A (zh) 2007-03-28
US7596833B2 (en) 2009-10-06
DE102006043978A1 (de) 2007-06-21
US20070062748A1 (en) 2007-03-22
CN1936249B (zh) 2011-07-06

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